Re: << and >> operators in c#


Stephany Young wrote:
arrayOfLines << new string( "another line" ) ; // adds to the end
of the array
databaseTable << row ; // adds a row to the database table

the general rule being:
<< adds to something
= replaces the contents of something with something else.

And what language might that be defined in?

a great language. one that also allows the programmer to define the
types that a class can be implicitly converted to. that is a feature
C# could benefit from. I dont like casting.


I have not used bit shifting for years. If you are looking to multiply

Just because you personally have not used a powerful element of the language
for years, don't assume that other people don't use it regularly.

what do they use it for? I think it makes a poor bit shift because it
ties you too close to the byte size of what is being operated on and
the unit of measure is implied as bits. why not a syntax that allows
you to shift by bits, bytes, characters?
wordValue = wordValue ShiftLeft 2 Bytes ;

-Steve





"Steve Richter" <StephenRichter@xxxxxxxxx> wrote in message
news:1169437733.682933.241290@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

Stephany Young wrote:
Maybe you would like to expand on the 'piping and 'adding' bits.

arrayOfLines << new string( "another line" ) ; // adds to the end
of the array
databaseTable << row ; // adds a row to the database table

the general rule being:
<< adds to something
= replaces the contents of something with something else.

Also, what makes you think that bit-shifting is seldom used?

I have not used bit shifting for years. If you are looking to multiply
or divide, better to use those operators. ( and the optimized compilers
of today likely bit shift when we multiply by a constant that is a
power of 2. )

-Steve






"Steve Richter" <StephenRichter@xxxxxxxxx> wrote in message
news:1169429467.473348.39610@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

Ben wrote:
Hi,

I'm trying to figure out the purpose of these operators.
Now, I know what they do. They shift bits either left or right.
But I don't know why would anybody want to do that. I've never seen
anyone using it in his/her code.
Any ideas?

it is a tragic mistake that an operator that is tailor made for piping
and adding to lists, is reserved instead for such a trivial, seldom
used operation. If you want to shift bits, better to have a new literal
operator:
bunchOfBits shiftleft 2 ;

-Steve



.

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